1.7380 (10CrMo9-10)

Classification

Country	Section	Category
Country	Section	Category
Germany	Structural, Pressure Vessel and Engineering Steels	Cr-Mo with Mo ≥ 0.35%

Chemical composition

Standard	Fe, %	Si, %	Mn, %	Cr, %	Cu, %	P, %	C, %	S, %	Mo, %	N, %
Standard	Fe, %	Si, %	Mn, %	Cr, %	Cu, %	P, %	C, %	S, %	Mo, %	N, %
	94.618–96.62	< 0.5	0.4–0.8	2–2.5	< 0.3	< 0.02	0.08–0.14	< 0.01	0.9–1.1	< 0.012

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Mechanical properties at 20 °C

Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\sigma_{Y}$ , $MPa$	$\sigma_{0.2}$ , $MPa$	$\epsilon_L$ , %	$\epsilon_T$ , %	$KV_{L}$ , $J$	$KV_{T}$ , $J$	Treatment
Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\sigma_{Y}$ , $MPa$	$\sigma_{0.2}$ , $MPa$	$\epsilon_L$ , %	$\epsilon_T$ , %	$KV_{L}$ , $J$	$KV_{T}$ , $J$	Treatment
		< 60			480–630					40	27–31
		60–100			470–620	280
		100–150			460–610	260
		150–250			450–600	250
		< 16				310
		16–40				300
		40–60				290
		< 16		Hardening, normalization			280	22	20
		16–40		Hardening, normalization			280
		40–60		Hardening, normalization			270

Analogues

CIS, Russia, Ukraine
CIS, Russia, Ukraine
10H2M

Standards

Standard	Description
Standard	Description
EN 10028-2
EN 10216-2

Description of chemical elements

Element	Units of measurement	Description
Element	Units of measurement	Description
Fe	%	Iron
Si	%	Silicon
Mn	%	Manganese
Cr	%	Chrome
Cu	%	Copper
P	%	Phosphorus
C	%	Carbon
S	%	Sulfur
Mo	%	Molybdenum
N	%	Nitrogen

Description of mechanical properties

Parameter	Units of measurement	Description
Parameter	Units of measurement	Description
$\sigma_{Y}$	$MPa$	Yield strength
$\sigma_{0.2}$	$MPa$	Tensile stress required to produce a total elongation of 0.2%
$\sigma _{U}$	$MPa$	Ultimate tensile strength
$\epsilon_L$	%	Elongation at break (longitudinal)
$\epsilon_T$	%	Elongation at break (transverse)
$KV_{L}$	$J$	Impact energy (longitudinal)
$KV_{T}$	$J$	Impact energy (transverse)